All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog,
and this project adheres to Semantic Versioning.

[1.2.0] – 2025-12-17

Added

• Automatic Pinterest token refresh with periodic background refresh system
• Support for GPT-5.x model variants (gpt-5.1, gpt-5.2, etc.) in model selection

Changed

• Updated OpenAI model filtering to exclude GPT-4 series and include GPT-5.x variants
• Improved pin counting order of operations for better accuracy
• Updated model selection documentation to reflect GPT-5 focus
• Enhanced /pin command with optional board parameter support

Fixed

• Pin counting order of operations bug that could cause incorrect rate limit tracking

Breaking Changes

• GPT-4 models are no longer available in the /model command selection
• Guilds currently using GPT-4 models will need to reselect a model via /model command

Technical

• Implemented background token refresh system for Pinterest OAuth tokens
• Updated regex pattern in filterChatModels() from /^(gpt|o[34]|gpt-4|gpt-5)/i to /^(gpt|o[34]|gpt-5(?:.d+)?)/i
• Aligned all documentation with current implementation state

[1.1.0] – 2025-11-03

Added

• Optional board parameter to /pin command for specifying custom board names
• Production build script (build.sh) with automated file exclusion and validation
• Build ignore file (.buildignore) for clean production deployments
• Pluralize library integration for improved keyword variant generation
• Enhanced error handling and user feedback across all commands
• Comprehensive documentation updates and alignment

Changed

• Improved /pin command to support custom board names separate from search keywords
• Enhanced build system with automated production packaging
• Updated documentation to reflect current implementation state
• Refined prompt system with better file discovery and ordering
• Improved rate limiting display and user notifications

Fixed

• Various bug fixes and stability improvements
• Enhanced error messages and user guidance
• Improved command validation and input handling

Technical

• Added pluralize library for better keyword matching
• Enhanced build process with file validation and compression
• Improved documentation structure and accuracy
• Updated deployment workflow with build script integration

[1.0.0] – 2024-10-22

Added

• Initial release of mjpin Discord bot
• Pinterest API v5 integration with OAuth2 authentication
• Multi-account Pinterest support with account switching
• Automatic image search and pinning via /pin command with keyword search
• OpenAI integration for Midjourney prompt generation
• Per-guild OpenAI model selection via /model command
• Modular system prompt system with live editing via /editprompt
• Rate limiting (100 pins per 12 hours per Pinterest account)
• OAuth callback handler for Pinterest authentication
• PM2 process management with restart confirmation
• File-based JSON storage for all persistent data
• Comprehensive error handling and graceful degradation

Changed

• Consolidated image search and pinning into single /pin command
• Improved command interfaces and user experience

Technical

• Node.js Discord bot using discord.js v14
• Pinterest API v5 integration
• OpenAI Chat Completions API
• File-based data persistence
• PM2 production deployment support
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